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Finding the Fourth Proportional to 13,848.76, 20,755.50 and 9,960.76

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Solution

The fourth proportional to 13,848.76, 20,755.50 and 9,960.76 is: 14,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.76 : 20,755.50 = 9,960.76 : x
  2. Step 2: Convert to fraction form
    13,848.76/20,755.50 = 9,960.76/x
  3. Step 3: Cross multiply
    13,848.76x = 20,755.50 × 9,960.76
  4. Step 4: Simplify right side
    13,848.76x = 206,740,554.18
  5. Step 5: Solve for x
    x = 206,740,554.18/13,848.76
  6. Step 6: Final answer
    x = 14,928.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.